Ki- bekapcsolást időzítő áramkör:

https://www.ebay.co.uk/itm/DC-5V-12V-24V-Cycle-Trigger-Delay-Timing-Timer-Relay-On-Off-Switch-Module-Newest/173835621839?hash=item28796915cf:m:maRhG677VAMXF7H8c158aIA

https://www.ebay.co.uk/itm/DC-5V-12V-24V-Adjustable-Trigger-Cycle-Timer-Delay-On-Off-Switch-Relay-Module/252935631379?hash=item3ae4237213:m:muTwdOfq_GO-BqRnN-beTYw&frcectupt=true

https://www.ebay.co.uk/itm/DC-5V-12V-24V-Infinite-Cycle-Delay-ON-OFF-Timing-Timer-Relay-Switch-Loop-Module/302352597004?hash=item46659e800c:m:maRhG677VAMXF7H8c158aIA